Honda Passenger AC Hole Grommet 90851-SB2-000

Honda OE Passenger Side A/C Firewall Hole Grommet – P/N 90851-SB2-000

The Honda Passenger A/C Hole Grommet (part number 90851-SB2-000) is a small but essential factory-correct component designed to seal the upper passenger-side firewall where the air conditioning lines pass through the cabin. Originally equipped on classic Honda and Acura platforms, this grommet helps protect the interior from heat, moisture, fumes, and unwanted engine bay noise.

Over time, the original A/C firewall grommet can harden, crack, or go missing during engine bay work or A/C system service. Replacing it restores a proper seal and helps maintain the clean, refined feel Honda intended. Molded to OEM specifications, this grommet installs directly into the upper passenger-side firewall opening with no trimming or modification required.

Whether you are completing a factory-correct restoration, refreshing an aging engine bay, or sealing up an A/C pass-through after service, this genuine-style Honda A/C firewall grommet ensures correct fitment and long-term durability. It’s the right detail part for keeping your Civic, CRX, or Integra sealed, quiet, and properly finished.

Key Features

• OEM-Style Passenger Side A/C Firewall Grommet
• Seals Upper Passenger Firewall A/C Pass-Through
• Prevents Heat, Moisture, And Engine Fumes
• Direct Fit With No Modifications Required
• Ideal For Restorations And A/C Service Repairs

Vehicle Compatibility

• 1986–1993 Acura Integra
• 1984–1991 Honda Civic
• 1984–1991 Honda CRX